DOCUMENT CONCEALMENT SYSTEM, DOCUMENT CONCEALMENT DEVICE, DOCUMENT CONCEALMENT PROGRAM AND DOCUMENT CONCEALMENT METHOD

摘要

PROBLEM TO BE SOLVED: To efficiently conceal a document file.

SOLUTION: Concealed words to be concealed are set in a concealed word table 291. A file server 130 stores a document file 139 which includes a plurality of words. A concealed word registration part 220 extracts words from the document file 139 stored in the file server 130 and sets words different from the concealed words set in the concealed word table 291 among the extracted words to the concealed word table 291 as new concealed words. A browsing file acquisition part 240 acquires the document file 139 requested by a user terminal 110 from the file server 130. A concealed file generation part 250 generates a concealed file by concealing the same words as the concealed words set in the concealed word table 291 among the words included in the document file 139. A concealed file output part 260 transmits the concealed file to the user terminal 110.

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